Bobbin-winder for sewing-machines



(No Model.)

. J. (moss 8; W. H'ARTY.

BOBBIN WINDBR FOR SEWING MACHINES.

No. 264,442. i Patented Se'pt.19, 1882.

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JOSEPH GROSS AND WILLIAM HARTY, OF NEWARK, NEW JERSEY.

BOBBlN-WlNDER FORISEWING-MACHINEFS.

SPECIFICATION forming part of Letters Patent No. 264,442, dated September 19, 1882.

Application filed April 7, 1882.

To all whom it may concern Be it known that we,'J0sEPH GROSS and WILLIAM HARTY, both residents of Newark, in the county of Essex and State of N ew J ersey, have invented certain new and useful Improvements in Sewing-Machines; and we do hereby declare the following to be a full, clear, and exact description of the invention, such as will enable others skilled in the art to which it appertains to make and use the same, reference being had to the accompanying drawings, and to letters of reference marked thereon, which form a part of this specification.

The object of this invention is to provide more convenient and effective means for winding sewing-machine bobbins and sharpening needles. A further object is to furnish more positive and direct power to the device.

Heretofore devices in some respects similar to our improved attachment have been actuated by means of a pulley placed against the belt, (herein designated h,) which connects the upper driving-shaft with thepulley beneath the sewing-machine table. By this arrange- 2 5 ment a large amount of lost motion and power was occasioned, which our improved construction has saved.

The invention consists in the arrangements and combinations of parts hereinafter set forth, illustrated, and finally embodied in the claims.

Referring to the accompanying drawings, in which similar letters of reference indicate like parts in each of the several figures, Figure 1 is a front elevation of a portion of a sewing-ma- 5 chine embodying our improvements; Fig. 2, a detached plan view of the bobbin-winder and needle-sharpener; and Fig. 3 is a detail view of a portion of a double pulley, showing the peculiar shape of certain grooves in the periphery thereof.

In said drawings, A represents the usual hollow stand, having a projectin glug, A ,which acts as a pivotal bearing for our improved attachment. 7

In Figs. 1 and 2 is shown a combined bobbin-winder and sharpening emery-wheel which we prefer to employ, in which figures a is a bed, having a fork, m, adapted to engage with the lug A, and hollow arms 11 b, cast or otherwise formed thereon, which form bearings for spin:

dles c 0, adapted to receive and hold the ends (No model.)

of the bobbin n during the process of winding. Within the arm I) we arrange a spiral spring, which bears againsta shoulder on the spindle and againsttheintcrior wall of said arn1,which 5 5 spring has a normaltendency to hold said spindle against the ends of said bobbin, as will be readily understood. Through the arm bthe live-spindle 0 passes, which spindle carries the sharpening-wheel d and driving-pulley e, which parts (I e are held upon said spindle by the screw and washer o p. (Shown more clearlyin Fig. 2.) The spindle and bobbin carried thereby are driven by means of a pulley, j, having two grooves in the periphery thereof, one of which grooves, j receives the belt h from the main driving-wheel beneath the machine-table, while the other groove, j, carries the supplemental belt g, which transmits power to the pulley e. The peripheral grooves in the pul- 7o leys ej, we form V-shaped, as shown in Fig. 3, by which means greater power is transmitted, as the grooves thus formed have a greater frictionalactionupon thebelt. The pulley j is arranged upon its bearings q so that it may be 7 fast when it is desired to use the machine for sewing or be loose when necessary to operate the winding and sharpening mechanism.

By means of the device described the bobbin-winding device is operated by an especial 8o belt, which transmits a greateramount of power thereto than when the pulley e is adjusted against the belt h, asheretofore.

' Having thus described our invention, what we claim, and wish to secure by Letters Patent, 1s

1. In a sewing-machine, the combination of the double-grooved pulley j, actuated by the main shaft q, the belt g, the bobbin-carrier provided with the pulley e and grinding-wheel 01, 0 the belt h, and means for operating the same, substantially as herein set forth and shown.

2. InaseWing-machine,the combination,with the stand A, having the projectinglug A thereon, of the bed a, adjusted upon said lug, the 5 armsb I), formingbearingsfor the bobbin-spindles c c, said bobbin-spindles, the sharpeningwheel cl, the pulley e, and means for operating the same, all arranged and operatin g substantially as and for the purposes herein set forth I00 and shown.

3. In asewing-machine,thesharpening-wheel (1 and bobbin-spindles, adjusted in suitable bedcecarryingthebobbin-spindlescc,recessed beaiings, all arranged and combined with the to receive the bobbin n, sharpening-Wheel cl, stand-lug A, substantially as herein set forth. and pulley 0, arranged and operating substan- 15 4. In combination with the stand A,having tially as set forth. 5 the lug A thereon, the bed a, having arms I) b, In testimony that we claim the foregoing the bobbin-spindles working in said arms, the we have hereunto set our hands this 15th day pulley e, actuating said spindles, the suppleof February, 1882.

mental belt, 7, actuating said pulley and spin- JOSEPH CROSS. (lles, the double-grooved pnlleyj, and driving- WILLIAM HAR'DY. to belt h, all arranged and operating in combina- Witnesses:

tion substantially as set forth. OLIVER DRAKE,

5. In combination in a sewing-machine, the CHARLES H. PELL. 

